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US 11,078,860 B2Granted
Predictive correction in internal combustion engines
AssigneeWayne State University
InventorsFadi Adly Anis Estefanous, Shenouda Mekhael, Naeim A. Henein
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Abstract
A method and system for reducing cycle to cycle variation of an engine is provided. The system may determine fuel injection characteristics and predict a gas burning rate or flame speed based on the fuel injection characteristics. The system may adjust an ignition timing in response to the predicted gas burning rate within the same engine cycle.
Claims9
A method for predicting knock in an engine, the method comprising:
- sensing combustion at multiple locations inside a cylinder including:
- sensing a first combustion signal on or in a spark plug;
- and
- sensing a second combustion signal on or in a fuel injector;
- comparing a timing of the first combustion signal to a timing of the second combustion signal;
- and
- adjusting engine operating parameters by dividing fuel injection into two or more intervals in response to the comparison of the timing of the first combustion signal to the timing of the second combustion signal.
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